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Re: [Discuss-gnuradio] aUaU
From: |
Eric Blossom |
Subject: |
Re: [Discuss-gnuradio] aUaU |
Date: |
Sun, 13 Feb 2005 12:34:37 -0800 |
User-agent: |
Mutt/1.5.6i |
On Sun, Feb 13, 2005 at 11:51:20AM -0800, cfk wrote:
> Well, I've gotten wfm_rcv_gui.py to run and receive one of the local FM
> stations. I can hear spotty audio through the PC speaker and I can see a
> series of "aUaU"'s printing out about 3 times/second. In between bursts of
> static, I can correlate enough words to tell that I really am listening to
> KBIG-FM at 104.3Mhz with the USRP.
wfm_rcv_gui.py doesn't use any kind of front end. What are you using?
Piece of wire?
> So, the question being begged relates to the "aU"'s I believe. I think these
> are overruns in data transferring twixt the usrp and my pc. The PC is running
> an Intel i810 motherboard with a 500Mhz CPU.
The "aUaU" are "audio underruns". The are normal. They are a result
of two non-synchronized clocks: the USRP clock and the sound card
clock. They are not a function of CPU speed, etc. We could stop
reporting them if it makes people feel better ;-)
> Am I hitting a CPU wall, or with luck, just some configuration setting that I
> dont know about yet.
Eric
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- [Discuss-gnuradio] usrp oscope, fft_simple & fft, cfk, 2005/02/12
- Message not available
- [Discuss-gnuradio] usrp_siggen.py & usrp_fft.py, cfk, 2005/02/12
- [Discuss-gnuradio] USB2 high speed vs. full speed., Berndt Josef Wulf, 2005/02/13
- Re: [Discuss-gnuradio] USB2 high speed vs. full speed., Eric Blossom, 2005/02/13
- [Discuss-gnuradio] aUaU, cfk, 2005/02/13
- Re: [Discuss-gnuradio] aUaU,
Eric Blossom <=
- Re: [Discuss-gnuradio] aUaU, cfk, 2005/02/13
- Re: [Discuss-gnuradio] aUaU, Eric Blossom, 2005/02/14
Re: [Discuss-gnuradio] What is a ppio_ppdev?, Stephane Fillod, 2005/02/19